title: Drug testing is inexpensive?  Not always, says this doc.
authors.forename: Mack
authors.initials: M
authors.lastname: Tyner
mesh_terms: D000701:Analgesics, Opioid / Q000627:therapeutic use*; D001168:Arthritis / Q000188:drug therapy*; D006801:Humans; D006853:Hydrocodone / Q000627:therapeutic use*; D015813:Substance Abuse Detection / Q000191:economics*
chemical_list: D000701:Analgesics, Opioid; D006853:Hydrocodone